Napa Autopro
“Friendly and honest staff, I will definitely take my truck here again”
Best Muffler & Exhaust Shops in St. Catharines, ON
15 technicians listed · 12 in St. Catharines · 2 open weekends · 13 rated 4.5+
Data verified October 16, 2026
Central Service Auto Repair
“I felt that they went above and beyond, and didn't try to convince me to change my blinker fluid lol.”
Saint Amand Auto & Truck Repair Inc.
“These guys are great, took me on short notice, fixed me up and I was on my way, recommended.”
Muffler Works
“Dropped my car off at 4:30pm and picked it up less than 2 hours later and the car sounded as good as new, no exhaust leak.”
Four Wheel Auto and Tire
“I needed tires and brakes , which I didn't realized that I needed to replace them, they booked me in within a couple of days.”
Eddie's Garage
“Raf was amazing to deal with throughout the process of getting my car safetied.”
Listed for drivers in and around St. Catharines, ON, these 15 shops handle mufflers, pipes and catalytic converters. What each one says about welding, custom work and warranties comes from its own website; ratings and quotes come from public reviews.
Area overview: St. Catharines, ON
12 of the 15 technicians we list are based in St. Catharines; the other 3 serve St. Catharines from Niagara-on-the-Lake (8 km) and Thorold (11 km). The technicians on this page are rated from 4.3 to 5.0 across 1,426 reviews; 11 have 50 or more reviews and 13 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price", "professional" and "fair". 2 are open on Saturdays. Domain records put 3 websites of the technicians on this page at ten or more years old; the oldest dates from 2001. 1 gives free estimates; 4 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 9 of the technicians on this page; 5 publish a contact page; 2 list a public email and 1 takes bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Why are some of these shops outside St. Catharines?
12 of the 15 shops sit in St. Catharines and the others come from other towns within 15 km. A shop with a bender and a welder is worth a short drive, since it can repair what a parts-only counter would replace.
Star Choice Mechanic
“! They are not after your money but will give you the best advice about your car”
R Garage
“I have been to so many other repair shops over the years and by far the guys at R Garage are the ones who have never done me wrong.”
El Camino
“The best service, these mechanics are so knowledgeable and friendly.”
Euromotors Ltd.
“Jeff fixes all of our issues in this fossil of a food truck we use”
Jamie's Auto
“Very honest Guys, Great workmanship, Highly recommend taking your car there,”
Earl and Son Autobody
“Thank you Des for your expertise on my vehicle I'd recommend your shop 100 %”
Richards Automotive Repair
“They got me in right away and were able to quickly fix an ongoing issue I was having with my breaks after multiple other places didn't completely resolve it.”
THE Mechanic's Team Auto Repair Inc.
“Her knowledge is commendable and always ready explains the required information as and when needed.”
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Caughill Automotive
“I love that l can leave my veh overnight and know that it is taken care of the next day, by professionals, who have my best interests at heart.”
Why these companies made our list
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